Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Door schedule

Graphite on paper

Black ink and black wash on tan wove paper

Graphite on off-white wove paper

Graphite, gouache, black ink and typing on white wove paper

Watercolor and graphite on white wove paper

Watercolor over graphite on off-white wove paper

Black ink and black crayon over graphite on off-white laid paper

Black ink on tan wove paper

Graphite on paper

Graphite on thin off-white wove paper

Colored crayon on cream wove paper; verso: black ink and graphite

Black ink with graphite ruling lines on thin ivory laid paper